High-Quality Zinc Alloy Lock (16mm) in Silver: Premium Material: Rust-resistant mailbox lock made of reinforced zinc alloy with chrome-plated surface for extreme durability and weather resistance (rain, snow, UV rays) Easy Assembly & Universal Compatibility: Ready to connect: Pre-drilled holes, for quick installation on metal or wooden mailboxes without special tools Maximum Security & Child Protection: Privacy guarantee: Prevents unauthorized access to mail, documents or dangerous objects, Safe for families, Protects children from sharp objects – ideal for households with small children Everyday-Usable Design: Convenient operation: Double-sided key allows easy opening even in the dark, Sleek silver design: Discreet, modern appearance fits any mailbox Reliability: Years of use (no bending or breaking), For assembly questions or special requests, please contact us, Manufacturer: xinyushiwenxinshengkejiyouxiangongsi